mark/d2/d2_test.go
2025-05-30 23:37:15 +02:00

103 lines
2.7 KiB
Go

package d2
import (
"fmt"
"testing"
"github.com/kovetskiy/mark/attachment"
"github.com/stretchr/testify/assert"
)
var diagram string = `d2
vars: {
d2-config: {
layout-engine: elk
# Terminal theme code
theme-id: 300
}
}
network: {
cell tower: {
satellites: {
shape: stored_data
style.multiple: true
}
transmitter
satellites -> transmitter: send
satellites -> transmitter: send
satellites -> transmitter: send
}
online portal: {
ui: {shape: hexagon}
}
data processor: {
storage: {
shape: cylinder
style.multiple: true
}
}
cell tower.transmitter -> data processor.storage: phone logs
}
user: {
shape: person
width: 130
}
user -> network.cell tower: make call
user -> network.online portal.ui: access {
style.stroke-dash: 3
}
api server -> network.online portal.ui: display
api server -> logs: persist
logs: {shape: page; style.multiple: true}
network.data processor -> api server
`
func TestExtractD2Image(t *testing.T) {
tests := []struct {
name string
markdown []byte
scale float64
want attachment.Attachment
wantErr assert.ErrorAssertionFunc
}{
{"example", []byte(diagram), 1.0, attachment.Attachment{
// This is only the PNG Magic Header
FileBytes: []byte{0x89, 0x50, 0x4e, 0x47, 0xd, 0xa, 0x1a, 0xa},
Filename: "example.png",
Name: "example",
Replace: "example",
Checksum: "58fa387384181445e2d8f90a8c7fda945cb75174f73e8b9853ff59b9e0103ddd",
ID: "",
Width: "198",
Height: "441",
},
assert.NoError},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
got, err := ProcessD2(tt.name, tt.markdown, tt.scale)
if !tt.wantErr(t, err, fmt.Sprintf("processD2(%v, %v)", tt.name, string(tt.markdown))) {
return
}
assert.Equal(t, tt.want.Filename, got.Filename, "processD2(%v, %v)", tt.name, string(tt.markdown))
// We only test for the header as png changes based on system png library
assert.Equal(t, tt.want.FileBytes, got.FileBytes[0:8], "processD2(%v, %v)", tt.name, string(tt.markdown))
assert.Equal(t, tt.want.Name, got.Name, "processD2(%v, %v)", tt.name, string(tt.markdown))
assert.Equal(t, tt.want.Replace, got.Replace, "processD2(%v, %v)", tt.name, string(tt.markdown))
assert.Equal(t, tt.want.Checksum, got.Checksum, "processD2(%v, %v)", tt.name, string(tt.markdown))
assert.Equal(t, tt.want.ID, got.ID, "processD2(%v, %v)", tt.name, string(tt.markdown))
assert.Equal(t, tt.want.Width, got.Width, "processD2(%v, %v)", tt.name, string(tt.markdown))
assert.Equal(t, tt.want.Height, got.Height, "processD2(%v, %v)", tt.name, string(tt.markdown))
})
}
}